| index : pacman | |
| Archlinux32 fork of pacman | gitolite user |
| summaryrefslogtreecommitdiff |
| -rw-r--r-- | lib/libalpm/be_sync.c | 106 |
diff --git a/lib/libalpm/be_sync.c b/lib/libalpm/be_sync.c index 3c990246..c4673b1b 100644 --- a/lib/libalpm/be_sync.c +++ b/lib/libalpm/be_sync.c @@ -18,10 +18,10 @@ * along with this program. If not, see <http://www.gnu.org/licenses/>. */ -#include "config.h" - #include <errno.h> +#include <sys/types.h> #include <sys/stat.h> +#include <fcntl.h> #include <unistd.h> /* libarchive */ @@ -212,6 +212,7 @@ int SYMEXPORT alpm_db_update(int force, alpm_db_t *db) /* print server + filename into a buffer */ len = strlen(server) + strlen(db->treename) + 5; + /* TODO fix leak syncpath and umask unset */ MALLOC(payload.fileurl, len, RET_ERR(handle, ALPM_ERR_MEMORY, -1)); snprintf(payload.fileurl, len, "%s/%s.db", server, db->treename); payload.handle = handle; @@ -234,6 +235,7 @@ int SYMEXPORT alpm_db_update(int force, alpm_db_t *db) /* if we downloaded a DB, we want the .sig from the same server */ /* print server + filename into a buffer (leave space for .sig) */ len = strlen(server) + strlen(db->treename) + 9; + /* TODO fix leak syncpath and umask unset */ MALLOC(payload.fileurl, len, RET_ERR(handle, ALPM_ERR_MEMORY, -1)); snprintf(payload.fileurl, len, "%s/%s.db.sig", server, db->treename); payload.handle = handle; @@ -316,7 +318,8 @@ static alpm_pkg_t *load_pkg_for_entry(alpm_db_t *db, const char *entryname, return NULL; } - if(likely_pkg && strcmp(likely_pkg->name, pkgname) == 0) { + if(likely_pkg && pkgname_hash == likely_pkg->name_hash + && strcmp(likely_pkg->name, pkgname) == 0) { pkg = likely_pkg; } else { pkg = _alpm_pkghash_find(db->pkgcache, pkgname); @@ -348,61 +351,38 @@ static alpm_pkg_t *load_pkg_for_entry(alpm_db_t *db, const char *entryname, return pkg; } -/* - * This is the data table used to generate the estimating function below. - * "Weighted Avg" means averaging the bottom table values; thus each repo, big - * or small, will have equal influence. "Unweighted Avg" means averaging the - * sums of the top table columns, thus each package has equal influence. The - * final values are calculated by (surprise) averaging the averages, because - * why the hell not. - * - * Database Pkgs tar bz2 gz xz - * community 2096 5294080 256391 421227 301296 - * core 180 460800 25257 36850 29356 - * extra 2606 6635520 294647 470818 339392 - * multilib 126 327680 16120 23261 18732 - * testing 76 204800 10902 14348 12100 - * - * Bytes Per Package - * community 2096 2525.80 122.32 200.97 143.75 - * core 180 2560.00 140.32 204.72 163.09 - * extra 2606 2546.25 113.06 180.67 130.23 - * multilib 126 2600.63 127.94 184.61 148.67 - * testing 76 2694.74 143.45 188.79 159.21 - - * Weighted Avg 2585.48 129.42 191.95 148.99 - * Unweighted Avg 2543.39 118.74 190.16 137.93 - * Average of Avgs 2564.44 124.08 191.06 143.46 - */ +/* This function doesn't work as well as one might think, as size of database + * entries varies considerably. Adding signatures nearly doubles the size of a + * single entry; deltas also can make for large variations in size. These + * current values are heavily influenced by Arch Linux; databases with no + * deltas and a single signature per package. */ static size_t estimate_package_count(struct stat *st, struct archive *archive) { - unsigned int per_package; + int per_package; switch(archive_compression(archive)) { case ARCHIVE_COMPRESSION_NONE: - per_package = 2564; + per_package = 3015; break; case ARCHIVE_COMPRESSION_GZIP: - per_package = 191; + case ARCHIVE_COMPRESSION_COMPRESS: + per_package = 464; break; case ARCHIVE_COMPRESSION_BZIP2: - per_package = 124; - break; - case ARCHIVE_COMPRESSION_COMPRESS: - per_package = 193; + per_package = 394; break; case ARCHIVE_COMPRESSION_LZMA: case ARCHIVE_COMPRESSION_XZ: - per_package = 143; + per_package = 400; break; #ifdef ARCHIVE_COMPRESSION_UU case ARCHIVE_COMPRESSION_UU: - per_package = 3543; + per_package = 3015 * 4 / 3; break; #endif default: /* assume it is at least somewhat compressed */ - per_package = 200; + per_package = 500; } return (size_t)((st->st_size / per_package) + 1); } @@ -411,7 +391,7 @@ static int sync_db_populate(alpm_db_t *db) { const char *dbpath; size_t est_count; - int count = 0; + int count, fd; struct stat buf; struct archive *archive; struct archive_entry *entry; @@ -423,38 +403,24 @@ static int sync_db_populate(alpm_db_t *db) if(db->status & DB_STATUS_MISSING) { RET_ERR(db->handle, ALPM_ERR_DB_NOT_FOUND, -1); } - - if((archive = archive_read_new()) == NULL) { - RET_ERR(db->handle, ALPM_ERR_LIBARCHIVE, -1); - } - - archive_read_support_compression_all(archive); - archive_read_support_format_all(archive); - dbpath = _alpm_db_path(db); if(!dbpath) { /* pm_errno set in _alpm_db_path() */ return -1; } - _alpm_log(db->handle, ALPM_LOG_DEBUG, "opening database archive %s\n", dbpath); - - if(archive_read_open_filename(archive, dbpath, - ALPM_BUFFER_SIZE) != ARCHIVE_OK) { - _alpm_log(db->handle, ALPM_LOG_ERROR, _("could not open file %s: %s\n"), dbpath, - archive_error_string(archive)); - archive_read_finish(archive); - RET_ERR(db->handle, ALPM_ERR_DB_OPEN, -1); - } - if(stat(dbpath, &buf) != 0) { - RET_ERR(db->handle, ALPM_ERR_DB_OPEN, -1); + fd = _alpm_open_archive(db->handle, dbpath, &buf, + &archive, ALPM_ERR_DB_OPEN); + if(fd < 0) { + return -1; } est_count = estimate_package_count(&buf, archive); - /* initialize hash at 66% full */ - db->pkgcache = _alpm_pkghash_create(est_count * 3 / 2); + db->pkgcache = _alpm_pkghash_create(est_count); if(db->pkgcache == NULL) { - RET_ERR(db->handle, ALPM_ERR_MEMORY, -1); + db->handle->pm_errno = ALPM_ERR_MEMORY; + count = -1; + goto cleanup; } while(archive_read_next_header(archive, &entry) == ARCHIVE_OK) { @@ -473,14 +439,19 @@ static int sync_db_populate(alpm_db_t *db) } count = alpm_list_count(db->pkgcache->list); - if(count > 0) { - db->pkgcache->list = alpm_list_msort(db->pkgcache->list, (size_t)count, _alpm_pkg_cmp); + db->pkgcache->list = alpm_list_msort(db->pkgcache->list, + (size_t)count, _alpm_pkg_cmp); } - archive_read_finish(archive); - _alpm_log(db->handle, ALPM_LOG_DEBUG, "added %d packages to package cache for db '%s'\n", + _alpm_log(db->handle, ALPM_LOG_DEBUG, + "added %d packages to package cache for db '%s'\n", count, db->treename); +cleanup: + archive_read_finish(archive); + if(fd >= 0) { + CLOSE(fd); + } return count; } @@ -605,7 +576,8 @@ static int sync_db_read(alpm_db_t *db, struct archive *archive, while(1) { READ_NEXT(); if(strlen(line) == 0) break; - pkg->deltas = alpm_list_add(pkg->deltas, _alpm_delta_parse(line)); + pkg->deltas = alpm_list_add(pkg->deltas, + _alpm_delta_parse(db->handle, line)); } } } |